/Engine/Source/Runtime/RHI/Public/DynamicRHI.h
Attempts to open a shader library for the given shader platform & name within the provided directory.
The new library if one exists and can be constructed, otherwise nil.
virtual FRHIShaderLibraryRef RHICreateShaderLibrary ( EShaderPlatform Platform, [FString](API\Runtime\Core\Containers\FString) const & FilePath, [FString](API\Runtime\Core\Containers\FString) const & Name )